2012 GMC SIERRA 1500 USB port

Black plate (28,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
1-28 In Brief
Storing Radio Stations
A maximum of 36 stations can be
stored as favorites using the six
softkeys located below the radio
station frequency tabs and by using
the radio FAV button. Press FAV to
go through up to six pages of
favorites, each having six favorite
stations available per page. Each
page of favorites can contain any
combination of AM, FM, or XM
stations.
For more information, see“Storing
Radio Stations” inAM-FM Radio on
page 7‑9.
Setting the Clock
To set the time and date:
1. Turn the ignition key to ACC/
ACCESSORY or ON/RUN, then
press
O, to turn the radio on.
2. Press
Hto display HR, MIN,
MM, DD, and YYYY (hour,
minute, month, day, and year). 3. Press the softkey located under
any one of the labels to be
changed.
4. To increase or decrease the time or date, turn
fclockwise or
counter‐clockwise.
For detailed instructions on setting
the clock for the vehicle's specific
audio system, see Clock on
page 5‑7.
Satellite Radio
XM is a satellite radio service based
in the 48 contiguous United States
and 10 Canadian provinces.
XM satellite radio has a wide
variety of programming and
commercial-free music, coast to
coast, and in digital-quality sound. A fee is required to receive the
XM service.
For more information, refer to:
.www.xmradio.com or call
1-800-929-2100 (U.S.)
.www.xmradio.ca or call
1-877-438-9677 (Canada)
See Satellite Radio on page 7‑11.
Portable Audio Devices
This vehicle may have an auxiliary
input located on the radio faceplate
and a USB port located in the center
console or on the instrument panel.
External devices such as an iPod
®,
laptop computer, MP3 player, CD
changer, or USB storage device can
be connected to the auxiliary port
using a 3.5 mm (1/8 in) input cable
or the USB port depending on the
audio system.
See “Using the Auxiliary Input
Jack” and“Using the USB Port” in
Auxiliary Devices on page 7‑32.

Black plate (29,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
In Brief 1-29
Bluetooth®
For vehicles with a Bluetooth
system, it allows users with a
Bluetooth‐enabled cell phone to
make and receive hands-free calls
using the vehicle’s audio system
and controls.
The Bluetooth‐enabled cell phone
must be paired with the Bluetooth
system before it can be used in the
vehicle. Not all phones will support
all functions. For more information,
visit www.gm.com/bluetooth.
For more information, see Bluetooth
on page 7‑48.
Steering Wheel Controls
If available, some audio controls
can be adjusted at the steering
wheel.
w: Press to go to the next favorite
radio station, track on a CD,
or folder on an iPod
®or USB
device.
c/x: Press to go to the
previous favorite radio station, track
on a CD, or folder on an iPod
®or
USB device. Press to reject an
incoming call, or to end a call.
b/g: Press to silence the vehicle
speakers only. Press again to turn
the sound on. Press and hold longer
than two seconds to interact with
OnStar
®or Bluetooth systems,
if equipped.
+
e: Press to increase volume.
−
e: Press to decrease volume.
SRCE: Press to switch between
the radio and CD, and for equipped
vehicles, the DVD, front auxiliary,
and rear auxiliary.
¨: Press to seek the next radio
station, the next track or chapter
while sourced to the CD or DVD
slot, or to select tracks and folders
on an iPod or USB device.
For more information, see Steering
Wheel Controls on page 5‑2.

Black plate (17,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-17
When a CD is inserted, the CD
symbol displays on the left side of
the radio display. As each new track
starts to play, the track number
displays.
The CD player can play the smaller
8 cm (3 in) single CDs with an
adapter ring. Full-size CDs and the
smaller CDs are loaded in the same
manner.
CD/AUX (CD/Auxiliary):Press to
cycle between CD or Auxiliary when
listening to the radio. The CD icon
and a message showing the disc
and/or track number will display
when a CD is in the player. Press
again and the system automatically
searches for an auxiliary input
device; see Auxiliary Devices on
page 7‑32 for more information.
If a portable audio player is not
connected, “No Input Device Found”
displays.
4(Information): Press to display
additional text information related to
the current song. If information is
available, the song title information displays on the top line of the
display and artist information
displays on the bottom line.
When information is not available,
“NO INFO”
displays.
f(Tune):Turn to select tracks on
the CD that is currently playing.
©SEEK: Press to go to the start
of the current track if more than
10 seconds on the CD have played.
Press to go to the previous track if
less than 10 seconds on the CD
have played.
Press and hold, or press multiple
times, to continue moving backward
through the tracks on the CD.
¨SEEK: Press to go to the next
track.
Press and hold, or press multiple
times, to continue moving forward
through the tracks on the CD.
sREV (Fast Reverse): Press
and hold to reverse playback quickly
within a track.
\FWD (Fast Forward): Press
and hold to advance playback
quickly within a track.
RPT (Repeat): For the AM-FM
Radio with CD, press and release
the RPT button to repeat the current
track. Press RPT again to turn off
repeat play.
RDM (Random): Press to listen
to tracks in random, rather than
sequential order. To use random, do
one of the following:
For the AM-FM Radio with CD:
1. Press the RDM button until the random icon displays.
2. Press the RDM button again until the random icon disappears
from the display.
For the Radio with CD (MP3) and
Radio with USB and CD (MP3):
1. Press the softkey positioned under the RDM tab until Random
Current Disc displays.
2. Press the softkey again to turn off random play.

Black plate (18,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-18 Infotainment System
For the Radio with USB and
Six-Disc CD (MP3):
1. Press the softkey positionedunder the RDM tab until
Randomize All Discs displays to
play tracks from all CDs loaded
in random order.
2. Press the softkey positioned under the RDM tab until Random
Current Disc displays to play
tracks from a single CD in
random order.
3. Press the same softkey again to turn off random play.
MP3‐Supported Files
The Radio with CD (MP3), Radio
with USB and CD (MP3), and Radio
with USB and Six-Disc CD (MP3)
have the capability of playing an
MP3 CD-R or CD-RW disc.
Format
Radios that have the capability of
playing MP3s can play .mp3 or .wma
files that were recorded onto a
CD-R or CD-RW disc. The files can be recorded with the following fixed
bit rates: 32 kbps, 40 kbps, 56 kbps,
64 kbps, 80 kbps, 96 kbps, 112 kbps,
128 kbps, 160 kbps, 192 kbps,
224 kbps, 256 kbps, and 320 kbps or
a variable bit rate.
Compressed Audio or Mixed Mode
Discs
The radio can play discs that
contain both uncompressed CD
audio and MP3 files. If both formats
are on the disc, the radio reads
all MP3 files first, then the
uncompressed CD audio files.
CD‐R‐
or CD‐RW‐Supported File
and Folder Structure
The radio supports:
.Up to 50 folders.
.Up to 8 folders in depth.
.Up to 50 playlists.
.Up to 255 files.
.Playlists with an .m3u or .wpl
extension.
.Files with an .mp3, .wma, or .cda
file extension.
Root Directory
The root directory is treated as a
folder. Files are stored in the root
directory when the disc or storage
device does not contain folders.
Files accessed from the root
directory of a CD display as
F1 ROOT.
Empty Folder
Folders that do not contain files are
skipped, and the player advances to
the next folder that contains files.
Order of Play
Compressed audio files are
accessed in the following order:
.Playlists (Px).
.Files stored in the root directory.
.Files stored in folders in the root
directory.

Black plate (19,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Infotainment System 7-19
Tracks are played in the following
order:
.Play begins from the first track in
the first playlist and continues
sequentially through all tracks
in each playlist. When the last
track of the last playlist has
played, play continues from the
first track of the first playlist.
.Play begins from the first track
in the first folder and continues
sequentially through all tracks in
each folder. When the last track
of the last folder has played,
play continues from the first
track of the first folder.
File System and Naming
The song name that displays is the
song name that is contained in the
ID3 tag. If the song name is not
present in the ID3 tag, then the
radio displays the file name without
the extension (such as .mp3) as the
track name. Track names longer than
32 characters or 4 pages are
shortened. The display does not
show parts of words on the last
page of text and the extension of
the file name is not displayed.
Preprogrammed Playlists
CDs that have preprogrammed
playlists reated using WinAmp™,
MusicMatch™, or Real Jukebox™
software can be accessed; however,
there is no playlist‐editing capability
using the radio. These playlists are
treated as special folders containing
compressed audio song files.
Playlists that have an .m3u or .pls
file extension and are stored on a
USB device may be supported by
the radio with a USB port.
Playlists can be changed by
using the softkeys below
the
S
candc Ttabs,
the
fknob, the©SEEK button,
or the
¨SEEK button. An MP3
CD-R or CD-RW that has been
recorded without using file folders can be played. If a CD-R or CD-RW
contains more than the maximum
of 50 folders, 15 playlists, and
512 folders and files, the player
allows access and navigates up to
the maximum, but all items over the
maximum are not accessible.
Playing an MP3
4(Information):
Press to display
additional text information related to
the current song. If information is
available, the song title information
displays on the top line of the
display and artist information
displays on the bottom line.
When information is not available,
“NO INFO” displays.
f(Tune):Turn to select MP3s on
the CD currently playing.
©SEEK: Press to go to the start of
the track, if more than 10 seconds
have played. Press and hold or
press multiple times to continue
moving backward through tracks.

Black plate (22,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-22 Infotainment System
The use of CD/DVD lens cleaners
is not advised, due to the risk of
contaminating the lens of the optics
with lubricants internal to the CD
and DVD player mechanism.
Notice:If a label is added to a
CD, more than one CD is inserted
into the slot at a time, or an
attempt is made to play scratched
or damaged CDs, the CD player
could be damaged. While using
the CD player, use only CDs in
good condition without any label,
load one CD at a time, and keep
the CD player and the loading slot
free of foreign materials, liquids,
and debris.
If an error displays, see “CD
Messages” later in this section.
Care of CDs and DVDs
If playing a CD-R or CD-RW, the
sound quality can be reduced due to
CD-R or CD-RW quality, the method
of recording, the quality of the music
that has been recorded, and the
way the CD-R or CD-RW has been
handled. Handle them carefully. Store CD-Rs or CD-RWs in their
original cases or other protective
cases and away from direct sunlight
and dust. The CD or DVD player
scans the bottom surface of the
disc. If the surface of a disc is
damaged, such as cracked, broken,
or scratched, the disc does not play
properly or not at all. Do not touch
the bottom side of a disc while
handling it; this could damage the
surface. Pick up discs by grasping
the outer edges or the edge of the
hole and the outer edge.
If the surface of a disc is soiled,
clean it with a soft, lint‐free cloth or
dampen a clean, soft cloth in a mild,
neutral detergent solution mixed
with water. Make sure the wiping
process starts from the center to
the edge.Audio Output
Only one audio source can be heard
through the speakers at one time.
An audio source is defined as DVD
slot, CD slot, XM, FM‐AM, front
auxiliary jack, USB port, or rear
auxiliary jack.
Press the
Obutton to turn the radio
on. The radio can be heard through
all of the vehicle speakers.
Front seat passengers can listen
to the radio (AM, FM, or XM if
equipped) by pressing the BAND
button or the DVD/CD AUX button to
select CD slot, DVD slot, front
auxiliary input, USB port, or rear
auxiliary input (if available).
If a playback device is plugged
into the radio’s front auxiliary input
jack, USB port, or the rear auxiliary
jack, the front seat passengers are
able to listen to playback from
this source through the vehicle
speakers. See “Using the Auxiliary
Input Jack” inAuxiliary Devices on
page 7‑32, or “Audio/Video (A/V)
Jacks” underRear Seat
Entertainment (RSE) System on
page 7‑37 for more information.

Black plate (26,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
7-26 Infotainment System
When the disc contains only
playlists and compressed audio
files, but no folders, all files are
located under the root folder. The
folder down and the folder up
buttons search playlists first and
then go to the root folder. When the
radio displays the name of the
folder, the radio displays ROOT.
Order of Play
Compressed audio files are
accessed in the following order:
.Playlists (Px).
.Files stored in the root directory.
.Files stored in folders in the root
directory.
Tracks are played in the following
order:
.Play begins from the first track in
the first playlist and continues
sequentially through all tracks in
each playlist. When the last
track of the last playlist has
played, play continues from the
first track of the first playlist.
.Play begins from the first track in
the first folder and continues
sequentially through all tracks in
each folder. When the last track
of the last folder has played,
play continues from the first
track of the first folder.
When play enters a new folder, the
display does not automatically show
the new folder name unless the
folder mode has been chosen as
the default display. The new track
name displays.
File System and Naming
The song name that displays is the
song name that is contained in the
ID3 tag. If the song name is not
present in the ID3 tag, then the
radio displays the file name without
the extension (such as .mp3) as the
track name.
Track names longer than
32 characters or 4 pages are
shortened. Parts of words on the
last page of text and the extension
of the file name do not display. Preprogrammed Playlists
Preprogrammed playlists that
were created using WinAmp™,
MusicMatch™, or Real Jukebox™
software can be accessed; however,
they cannot be edited using the
radio. These playlists are treated
as special folders containing
compressed audio song files.
Playlists that have an .m3u or .pls
file extension and are stored on a
USB device may be supported by
the radio with a USB port.
Playing an MP3 or WMA
(in Either the DVD or CD Slot)
If a disc is inserted into the top DVD
slot, the rear seat operator can turn
on the video screen and use the
remote control to navigate the CD
(tracks only).
f(Tune):
Turn to select MP3/WMA
files.
©SEEK: Press to go to the start of
the track, if more than five seconds
have played. Press and hold or
press multiple times, if less than

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Infotainment System 7-33
player. If a portable audio player is
not connected,“No Input Device
Found” displays.
DVD/CD AUX (DVD/CD/
Auxiliary): Press to cycle through
DVD, CD, or Auxiliary when
listening to the radio. The DVD/CD
text tab and a message showing
track or chapter number will display
when a disc is in either slot. Press
again and the system automatically
searches for an auxiliary input
device, such as a portable audio
player. If a portable audio player
is not connected, “No Aux Input
Device” displays. If a disc is in
both the DVD slot and the CD slot,
the DVD/CD AUX button cycles
between the two sources and does
not indicate “No Aux Input Device.”
If a front auxiliary device is
connected, the DVD/CD AUX
button cycles through all available
options, such as: DVD slot, CD slot,
front auxiliary, and rear auxiliary
(if available). See “Using the
Auxiliary Input Jack” in this section,
or “Audio/Video (A/V) Jacks” underRear Seat Entertainment (RSE)
System on page 7‑37
for more
information.
Using the USB Port
Radios with a USB port can control
a USB storage device or an iPod®
using the radio buttons and knobs.
See “Playing an MP3” inCD Player
on page 7‑15 orCD/DVD Player on
page 7‑21 for information about how
to connect and control a USB
storage device or an iPod.
USB Support
The USB connector is located
on the instrument panel or in the
center console, and uses the
USB 2.0 standard.
USB‐Supported Devices
.USB flash drive
.Portable USB hard drive
.Fifth generation or later iPod
.iPod nano
.iPod touch
.iPod classic
Not all iPods and USB drives are
compatible with the USB port.
Make sure the iPod has the
latest firmware from Apple
®for
proper operation. iPod firmware
can be updated using the latest
iTunes
®application. See
www.apple.com/itunes.
For help with identifying the iPod, go
to www.apple.com/support.
Radios that have a USB port can
play .mp3 and .wma files that are
stored on a USB storage device as
well as AAC files that are stored on
an iPod.
USB‐Supported File and Folder
Structure
The radio supports:
.Up to 700 folders
.Up to eight folders in depth
.Up to 65,535 files.